We have already made several demo models (Model_Examples) that you can merge into a bigger model and make your own.

Do you have a need you can express with words, but you instead want to express it as a model?

The User-Paid-Model-Snippet service may be a good fit for you.

This is how it works:

1. You describe in text - and possibly images - what you want and how it should work.
2. We give you a fixed-price estimate for a model snippet with the required functionality.
3. You accept and pay the fee.
4. We set up the model and make it available to you - and we extend our catalog of downloadable model snippets (if the model was generic enough).
5. You merge the model snippet with your current model and evolve the system.
6. You are now free to tweak the complete model, including the merged snippet.